Patent US4589871A successfully refreshed from Google Patents.
Patent US2700536A successfully refreshed from Google Patents.
US2700536A
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Air conditioner
Assignee: Surface Combustion Corp
•
Filing: 1951-11-02
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Granted: 1955-01-25
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Expires: 1971-11-02
Abstract
No abstract record available.
Inventors
- 👤 Gilbert A Kelley
- 👤 Howard E Rahm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:43
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1417; F24F2003/144; F24F2003/1458; Y; Y10; Y10S; Y10S261/00; Y10S261/34; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85954; Y10T137/86236
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1625592A
Cited
US1921347A
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CH195945A
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US2192126A
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US2279938A
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US2280633A
Cited
US2247514A
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US2376794A
Cited
US2420993A
Cited
US2483448A
Cited
US2608993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |